Drive mechanism for oscillatory abrasion and polishing tool

a technology of abrasive bit and drive mechanism, which is applied in the direction of manufacturing tools, edge grinding machines, dental surgery, etc., can solve the problems of abrasive bit recoiling or running away from the nail, difficult for an untrained individual to control such units, and poor acceptance of prior units by consumers, so as to avoid the spread of infection, and achieve the effect of economics and reliably implementation
US6848451B2Inactive Publication Date: 2005-02-01CROSSTEX INT INC
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Patents(United States)
Current Assignee / Owner
CROSSTEX INT INC
Publication Date
2005-02-01
Estimated Expiration
Not applicable · inactive patent

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Abstract

A transmission for changing rotary motion into angularly reciprocating motion and adapted to be mounted on the output end of a power unit of the type having a rotary drive output and used to drive a tool. The transmission is comprised of a support member, a driving resinous member supported by the support member for rotary motion, and a driven resinous member supported by the support member for reciprocating angular movement by the support member. The transmission subassembly is formed by the driving resinous member, driven resinous member and support member and adapted to be mounted on the output end of the power unit with a rotary drive output mechanically coupled to the driving resinous member. A driving cam surface is disposed on a portion of the driving resinous member. A driven cam surface is disposed on a portion of the driven resinous member. The driving cam surface is in contact with the driven cam surface during at least a portion of the cycle of rotation of the driving cam surface. The driven cam surface is configured and dimensioned to be driven by the driving cam surface in a positive angular direction during one part of the cycle and is driven by the driving cam surface in a negative angular direction during another part of the cycle. Angularly reciprocating motion is thereby imparted to the tool as the driving cam surface and driven cam surface engage each other. The tool is particularly advantageous when used in connection with motorized manicure tools, polishing devices, and dermabrasion devices.
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Description

STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENTNot ApplicableBACKGROUND OF THE INVENTION1. Technical FieldThe present invention relates to a tool assembly having a head that imparts oscillatory motion to a desired device coupled to the assembly. More particularly, the present invention relates to a drive mechanism for a tool assembly, the drive mechanism having a rotating drive shaft that engages a first end of a driven shaft to rotate the driven shaft in an oscillatory manner. The inventive tool assembly is particularly advantageous when used in connection with massaging, dermabrasion, nail buffing and sculpting, woodworking and polishing assemblies.2. Description of the Related ArtBrushes have been used for many years to polish, clean and abrade a wide variety of substrates. These brush products typically have a plurality of bristles that contact the substrate. U.S. Pat. Nos. 5,152,917 and 5,304,223 (Pieper et al.) teach coated abrasive articles comprising precisel...

Claims

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